Let me start by saying this endoscope has been a game-changer for my DIY projects. The 4.3-inch IPS display is crisp and bright - no squinting at blurry images here! I've used it to inspect everything from car engines to plumbing, and that dual-lens setup (front + side camera) gives me way more flexibility than single-lens models.

The semi-rigid cable is perfect - stiff enough to push into tight spaces but flexible enough to maneuver around bends. Though like one reviewer mentioned, after about 5-6 feet it does start bunching up. The IP67 waterproof rating gave me peace of mind when inspecting my flooded basement pipes last week.

Battery life has been solid in my experience - I consistently get 4+ hours with the LED lights on full brightness. The Micro-USB charging is a bit outdated though (come on, USB-C please!). One night I forgot to turn it completely off and did notice some battery drain, so make sure that power button is fully clicked off.

Image quality is good but not perfect - the 1080p resolution looks great in well-lit areas but gets grainy in dark spaces beyond the reach of the LED lights. The side camera's short focal range (1-2 inches) is actually perfect for peeking into wall cavities during electrical work.

My favorite unexpected use? Helping my kid explore ant colonies in our backyard! The included magnet and hook attachments have come in handy more times than I expected too. Just be aware the video format isn't Mac-friendly out of the box - you'll need conversion software.

For under $100, this endoscope punches way above its weight class. While it's not professional-grade, it handles most homeowner and hobbyist tasks with ease. Just don't expect miracles in complete darkness or extremely confined spaces beyond about 6 feet deep.